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Maybe someone can help me out of a self created problem I create from time to time.

I use a generic USB hard drive with 2 USB connectors - 1 for data, 1 for power. If I use only the data cable (forget to plug in the power cable) the drive will automatically mount and work perfectly. Without the power cable, however, the drive will sometimes just suddenly die (shut down). While this causes no obvious problem with the OS, I'm unable to get the USB drive to remount without a reboot. Is there something I can do manually that will allow the drive to remount without restarting the OS?

I use a generic USB hard drive with 2 USB connectors - 1 for data, 1 for power. If I use only the data cable (forget to plug in the power cable) the drive will automatically mount and work perfectly. Without the power cable, however, the drive will sometimes just suddenly die (shut down). While this causes no obvious problem with the OS, I'm unable to get the USB drive to remount without a reboot. Is there something I can do manually that will allow the drive to remount without restarting the OS?

By right, you could just unplug the USB drive, then wait a few seconds, plug it back to USB port.The Linux OS should detect this USB as a 'new drive' and automaticall mount it as usual.

By the way, if you find this a nuisance to you, you could also consider instead of using a 'higher powered required USB drive', choose one that required less power, this is usually packed with single USB connector cable.